Used 2015 GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 6A) Consumer Reviews
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Great Riding Truck for the Money
Jersey Traveler, Monroe Township, NJ, 03/22/2018
updated 06/14/2021
GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 6A)
26 of 28 people found this review helpful
"To be honest my Tacoma was a great truck with no issues, and while I miss it, I do not regret my decision. I retired and bought a travel trailer that needed a truck that could pull it without grunting uphill. The Sierra doesn't even know it is towing it, it came with the trailer package, built in brake controller, and the Z71 package. Without the trailer the best mileage I have gotten is almost 22.4 mpg, I never got over 18 with the Tacoma. The IntelliLink system is terrific. I have upgraded the headlight bulbs to LED, making a huge improvement over the stock bulbs. At a cost of about $400, I installed the Roadmaster Active suspension kit, (about 20 minutes per side) which makes a big difference in handling, especially with the towing. I eliminated the OnStar and changed over to a factory Navigation System. No need to pay $40 a month for directions, which I don't need everyday. I also purchased a rear under seat storage box. GMC should have it as a standard item. The 5.3L engine has a light ticking sound, but I understand that is characteristic to all of them and may have something to do with the cylinder deactivation, and it doesn't bother me. The Sierra is comfortable, quiet and so to date has been dependable. I recently added an additional leaf spring through a local spring shop. The handling is much better, it didn't contribute to much harshness at all and actually made for a smoother, less bouncier and more enjoyable ride. It added more stabilization going into corners and curves, and better towing results. Mechanically this truck has been a gem and a pleasure to drive. Towing our camper, it is a beast It handles the trailer very well. At my age I don't see any more new vehicles in my future, I intend to keep this truck until I cant drive any longer. I may just put in another engine if it comes to that. I cant say anything bad about it. Hopefully it will continue to perform well for a long time to come. I have changed the trans fluid, antifreeze, hydraulics . . . fluid changes are crucial to the longevity of any vehicle and for what prices are these days for new trucks, my used Sierra is worth every cent to keep it road worthy. Compared to a Chevy Silverado I once owned, the GMC Sierra is like changing from a suit into a tuxedo. After the last big snowstorm the 4x4 traction is unbelievable. It is a keeper for sure. Lots of comments on the looks, smooth ride and fun to drive. Here it is soon to be 2020 and still rides like new! As an update it is now October of 2020, the truck has 98,000 trouble free miles, it has been a very dependable vehicle. Just had a recent oil change, no complaints with reliability. 4/13/21 Update: Right after my last update, the check engine light came on, and the engine was missing at idle. I drove immediately to my trusted mechanic where i was informed valve #7 collapsed and the cam was also damaged. I had several options and went with an engine replacement that had 45,000 miles out of a 2016, with a three year waranty for parts and labor. Once home after the replacement, I installed an AFM Disabler along with an Oil Catch Can. As much as I love the truck, doing much research I am not a fan of DI engines, and may at some point look into a Toyota Tundra. Where I do not have to worry about the topside of the intake valves not being cleaned. One engine replacement is enough. Recently the engine would bog and surge, hard downshifts. Brought it to my local shop, they found the copper wire harness connections had turned green, with intermittent loss of signals. They cleaned, sealed, reconnected all the harness connections, The truck runs like a dream. best it has been since I owned it!
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My 2015 is the best truck I have ever owened.
GMC Cornhusker, Crawfordville, FL, 07/31/2016
GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 6A)
5 of 5 people found this review helpful
Its now been a year I have had my 2015 GMC Sierra. I have put on 11,000 miles and have not had any problems. I have not towed with it yet but my friends with the same year and model say its great towing with it. I would like to see better fuel economy but it is a truck. I average about 16mpg in the city and 19-19.5mpgon the Interstate. (both of those figures are with the truck in 2 wheel drive mode.) I believe that when GM puts their 10 speed transmission on the Sierra (probably 2019 or 2020) it should give it an extra 2 miles to the gallon, or so I've read. The truck handles the snow and Ice great here in Nebraska. I drove through 4 foot drifts once before the plows came through and it handled great.
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Good truck, rattles worse than a maraca
Dale Walton, Bakersfield, CA, 01/31/2016
updated 02/01/2018
GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 6A)
12 of 16 people found this review helpful
Ive owned this truck for only 3 months now, and have only put 4300 miles on it. Fuel economy is great, but I cant stand to be driving in it because of so many interior rattles. If somebody on a harley pulls up next to me, or any other vehicle with an aftermarket exhaust it starts with a very high pitched rattle under the dash. If i HIT EVEN THE SLIGHTEST BUMP IN THE ROAD, IT SOUNDS LIKE EVERY SCREW IN THE CAB IS LOOSE. I drive professionally for a living, and refuse to own a rattle bucket for my hour commute home. Wish I would have just kept my 2012 tundra. *****UPDATE 01/31/2018********* I SOLD THAT PIECE OF JUNK!!!!!! After this review, I drove straight into my local Toyota dealer and bought a 2016 Tundra limited, and have not regretted the decision. A much higher quality truck. After owning for 2 years it’s still as tight as the day it was completed in Texas (not Mexico like a GMC).
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10,000 Miles and In Love
Randy, Newington, CT, 02/10/2016
GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 6A)
7 of 9 people found this review helpful
Reading all of the reviews made me want to post one. Specifically in response to someone who obviously had a really negative experience with this truck and wanted the warn the consumer. Well I want to do the opposite. I drive a crew cab SLT with the 5.8L V8 4WD as a daily commuter in VT. We get the hot weather and the coldest of the cold. I log a min of 50 miles a day. I'm incredibly pragmatic and evaluated every truck, cost/quality/ride etc... I ended slightly blowing my budget for this selection. It's not a Denali but essentially in name only (and maybe magnetic suspension). Otherwise I have every bell and whistle, 20 Inch luxury rims, folding mirrors, hot/cold seats, premium leather, wide running boards and more. To put it simply this is the best vehicle I've ever owned and don't know that I could ask for more. Now I will admit I'm relatively young, 32, so perhaps the advanced controls come really easy to me, but I find everything to be intuitive. My favorite feature is the ability to call up Siri in 2 seconds and direct her to do my bidding. I've asked for songs to be played that I don't own but it's found on apple radio in 3 seconds. The feature I did shut off almost immediately was the lane departure assist. Either I cross the lines all of the time or the roads here are narrow but my rear end was vibrating worse than a stripper riding the sibian on the Howard Stern channel. Aside from absurd comfort, phenomenal amenities and an awesome look the gas mileage for an engine of this size is nuts. I'm getting an avg. of 20 MPG, my old V6 BMW barely got that but now I can tow a boat if I feel the need. Addressing some common issues I will say that I've noticed the weird shifting at certain speeds. It is disconcerting but it happens very rarely to me. The other concern is the headlights, with everything on I don't have an issue but I can see how it's a bit dim. To be honest slightly shocked it's not a higher quality bulb considering the money put into the headlights on these new rigs. I'll post again if issues arise but I can say that if you can afford it and want a truck, you won't find a more luxurious option. **The folding back seat in the crew cab is game changing. Full size dog bed, tires, golf and even seat down packed with people it works great!
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stay away from this product
jim, Holly, MI, 02/10/2019
GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 6A)
5 of 6 people found this review helpful
Had the truck my first winter, only 5000 miles and the radiator hose was blowing fluid thru out the engine. 26000 miles and the 4 wheel drive was stuck in 4x4, later found out you should not shut engine off in cold weather conditions with the 4 wheel drive in gear. The heater in defrost does not clear the window all across the front window . This product is 100% in Mexico and the quality shows.
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